الفهرس 
Introduction
Aims of the present workOnly 14 pages are availabe for public view
 |  | from | 16 |  |  |
| | | from | 16 | | |
Abstract
The present study has been carried out during establishing
the new Assiut Barrages and hydropower plant project at the
city of Assiut; Upper Egypt. The new barrages will replace the
old existing one dating back between 1898 and 1903. It will
be constructed across the Nile River and located away from
the old one about four hundred meters. The project will
include an embankment dam, a gated spillway, a river
hydropower plant and a navigation lock in the Nile River.
The main objective of the present study was to assess the
impact of the construction of the new Assiut barrages on the
following: 1- The physicochemical parameters of the water
which included (temperature of water, pH, dissolved oxygen,
total dissolved solids, turbidity and water current velocity) in
upstream and downstream of the existing Assiut barrages.
2- The heavy metals concentrations in water and sediment at
upstream and downstream the old Assiut barrages on the Nile
River.
3- Assess the quality and quantity of common invertebrates
inhabiting the Nile upstream and downstream the area of the
project which included Zooplankton and Benthos.
To achieve the above mentioned goals, eight different
locations (Site 1- Site 8) were randomly chosen; four sites
located at the upstream of the Nile River before (Upstream)
old barrages and other four sites located around the onstruction area (Downstream) for the new Assiut barrage
and hydropower plant project.
The physicochemical parameters of the Nile River were
measured monthly during sampling at each location. These
parameters included (Temperature of water, and pH of the
water, dissolved oxygen, Total dissolved solids, Turbidity
and water current velocity). Quantitative and qualitative
samples of zooplankton were sampled and investigated in the
laboratory. The samples of zooplankton species were
separated and identified till the species using different
taxonomic keys and references. Benthic samples were
collected monthly at upstream and downstream sites. They
were separated and identified using different taxonomic keys
and references. Heavy metals analysis was done in water and
sediment samples from upstream and downstream of the old
barrages. Metals which were analyzed in water and sediment
included, lead (Pb), cupper (Cu), iron (Fe), cadmium (Cd)
and zinc (Zn). All dated were subjected to different statistical
techniques.